The Physiological Effect of Graded Compression Stockings on Blood Flow in the Lower Limb: An Assessment with Colour Doppler Ultrasound

1999 ◽  
Vol 14 (1) ◽  
pp. 17 ◽  
Author(s):  
T. Benko¨ ◽  
I. Kalik ◽  
M. N. Chetty
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Lower Limb ◽  
Physiological Effect ◽  
Colour Doppler ◽  
Compression Stockings ◽  
Colour Doppler Ultrasound

The Physiological Effect of Graded Compression Stockings on Blood Flow in the Lower Limb: An Assessment with Colour Doppler Ultrasound

1999 ◽  
Vol 14 (1) ◽  
pp. 17-20 ◽  
Author(s):  
T. Benkö ◽  
I. Kalik ◽  
M. N. Chetty
Keyword(s):  
Blood Flow ◽  
Lower Limb ◽  
Peak Velocity ◽  
Femoral Vein ◽  
Physiological Effect ◽  
Venous Stasis ◽  
Sectional Area ◽  
Colour Doppler ◽  
Compression Stockings ◽  
Cross Sectional

Objectives: To assess the physiological effect of low-pressure graded compression stockings (GCS) on the blood flow of the lower limb with the use of colour Doppler. Design: A randomised controlled study. Setting: X-ray Department in a teaching hospital. Patients: Forty-five healthy, adult, voluntary subjects. Method: Subjects were randomised into three groups to either wear thigh- or knee-length GCS of the same type or no stockings. The diameter and cross-sectional area of the femoral and popliteal veins and the peak venous velocities were measured with colour Doppler before the application of GCS and after 20 min bed rest with the stockings in situ. Results: Measurements showed a significant increase of the peak velocity in the femoral vein with thigh-length GCS ( p<0.002). There was a significant decrease of the popliteal vein diameter and cross-sectional area with thigh-length GCS ( p<0.05). There was no significant change in the knee-length GCS group and the control group, in which patients did not wear stockings. A paired t-test was used to determine the significance of the changes. Conclusions: Thigh-length GCS have an effect of increasing venous peak velocity in the femoral vein, hence decreasing venous stasis. Furthermore, they decrease the dilatation of the popliteal vein, which may reduce the risk of intimal tears occurring, which may contribute to venous thrombogenesis. Other methods can given more information in assessing the effect of various lengths of stocking on venous stasis.

Analysis of Clinical Diagnostic Value of High Frequency Colour Doppler Ultrasound for Abdominal Wall Endometriosis

2021 ◽  
Vol 11 (3) ◽  
pp. 1004-1012
Author(s):  
Xiuchun Zhang
Keyword(s):  
Blood Flow ◽  
Abdominal Wall ◽  
Doppler Ultrasound ◽  
High Frequency ◽  
Subcutaneous Fat ◽  
Diagnostic Methods ◽  
Surrounding Tissue ◽  
Colour Doppler ◽  
Abdominal Wall Endometriosis ◽  
Colour Doppler Ultrasound

Abdominal wall endometriosis is a common endometriosis, which is located outside the endometrium, such as the myometrium or subcutaneous fat layer of the abdominal wall, forming a mass, active and infiltrating into the surrounding tissue, accompanied by menstrual pain, and seriously affecting the quality of life of patients. With the increasing operation of caesarean section and other traumatic operations, the incidence rate of abdominal wall endometriosis is increasing. Because of the variety of clinical manifestations of abdominal wall endometriosis, there are many kinds of diagnostic methods. Choosing the appropriate diagnostic methods to confirm abdominal wall endometriosis has become the primary work of diagnosis and treatment of abdominal wall endometriosis. This paper discusses the clinical value of high frequency colour doppler ultrasound in the diagnosis of abdominal wall endometriosis. Compared with the diagnosis of ordinary ultrasound and high frequency colour doppler ultrasound, the location, shape, size, boundary, internal echo, blood flow velocity, blood flow resistance and other parameters of the mass in the focus were observed. It is proved that the application of high-frequency colour doppler ultrasound can greatly improve the ultrasonic diagnosis rate of abdominal wall endometriosis, and it is non-invasive, radiation-free, low price, easy for patients to accept. It provides a high value clinical diagnosis basis for the early detection and treatment of abdominal wall endometriosis.

scholarly journals Role of colour Doppler in evaluation of venous abnormalities of lower limb

2019 ◽  
Vol 7 (1) ◽  
pp. 163
Author(s):  
Dinika Sharma ◽  
John D’Souza ◽  
Priscilla Joshi
Keyword(s):  
Doppler Ultrasound ◽  
Lower Limb ◽  
Varicose Veins ◽  
Age Groups ◽  
Venous Disease ◽  
Colour Doppler ◽  
Vein Thrombosis ◽  
Colour Doppler Ultrasound ◽  
Male Preponderance

Background: Venous abnormalities of lower limb are a fairly common cause of morbidity. Although clinical diagnosis is the cornerstone of the diagnosis of lower limb venous disease, Colour Doppler ultrasound has become the investigation of choice to confirm the diagnosis. This study evaluated the role of Colour Doppler ultrasound in various venous pathologies of the lower limb and the sonographic findings were correlated with surgical and clinical findings.Methods: 100 patients of all age groups of either sex presenting with clinically suspected entities affecting venous system of the lower limb were selected for this study.Results: Our study showed a definite male preponderance (65%) with an incidence of 41% in the age group of 21-40 years. Isolated varicose veins had an incidence of 58% followed by isolated deep vein thrombosis (DVT) (29%), varicose veins with thrombophlebitis (5%), DVT with thrombophlebitis (5%), DVT with varicose veins (2%) and hematoma (1%). The findings correlated with surgery and gave a sensitivity of 100%.Conclusions: Colour Doppler ultrasound is unique due to its feasibility, accessibility and cost effectiveness. Its dynamism is also exploited by various maneuvers done by the patients, radiologist and the machine parameters to bring about changes in blood flow to reach the exact diagnosis.

scholarly journals Evaluation of radial and ulnar artery blood flow after radial artery decannulation using colour Doppler ultrasound

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Li-jia Liu ◽  
Hong-mei Zhou ◽  
Huan-liang Tang ◽  
Qing-he Zhou
Keyword(s):  
Blood Flow ◽  
Doppler Ultrasound ◽  
Radial Artery ◽  
Repeated Measures ◽  
Peak Systolic Velocity ◽  
Ulnar Artery ◽  
Artery Blood Flow ◽  
Colour Doppler ◽  
Female Sex ◽  
Colour Doppler Ultrasound

Abstract Background There is a lack of reports in the literature regarding changes in radial artery blood flow after decannulation. The objective of this study was to investigate changes in radial and ulnar artery blood flow after radial artery decannulation using Doppler ultrasound and to explore the factors that influence radial artery blood flow recovery. Methods In current observational study, we used colour Doppler ultrasound to measure the cross-sectional area of the radial (SR) and ulnar artery (SU) and peak systolic velocity of the radial (PSVR) and ulnar artery (PSVU) for both hands at four time points in patients with radial artery cannulation: pre-cannulation (T0), 30 min after decannulation (T1), 24 h after decannulation (T2), and 7 days after decannulation (T3). Repeated measures analysis of variance and logistic regression analysis were performed to analyse the data. Results Overall, 120 patients were included in the present study. We obtained the following results on the side ipsilateral to the cannulation: compared with T0, the ratio of PSVU/PSVR increased significantly at T1 and T2 (p < 0.01); compared with T1, the ratio of PSVU/PSVR decreased significantly at T2 and T3 (p < 0.01); compared with T2, the ratio of PSVU/PSVR decreased significantly at T3 (p < 0.01). Female sex (OR, 2.76; 95% CI, 1.01–7.57; p = 0.048) and local hematoma (OR 3.04 [1.12–8.25]; p = 0.029) were factors that were significantly associated with the recovery of radial artery blood flow 7 days after decannulation. Conclusions There was a compensatory increase in blood flow in the ulnar artery after ipsilateral radial artery decannulation. Female sex and local hematoma formation are factors that may affect the recovery of radial artery blood flow 7 days after catheter removal.

100 Relationship between corpus luteum blood flow evaluated via colour Doppler ultrasound and pregnancy rate in bovine embryo transfer recipients

2020 ◽  
Vol 32 (2) ◽  
pp. 176
Author(s):  
M. K. Sermersheim ◽  
B. R. Lindsey ◽  
L. M. Naves ◽  
M. Rubessa ◽  
M. B. Wheeler
Keyword(s):  
Blood Flow ◽  
Medical Imaging ◽  
Corpus Luteum ◽  
Pregnancy Rate ◽  
Embryo Transfer ◽  
Doppler Ultrasound ◽  
Doppler Imaging ◽  
Bovine Embryo ◽  
Colour Doppler ◽  
Colour Doppler Ultrasound

The advent of colour Doppler ultrasound has allowed evaluation of blood flow to bodily tissues. This novel technology is being tested as a tool to improve efficiency in a variety of livestock reproduction programs. The objective of the present study was to evaluate the relationship between blood flow to the ovarian corpus luteum (CL), imaged via colour Doppler ultrasound, and pregnancy rate in crossbred dairy recipients for embryo transfer (ET). Oestrous cycles of Bos indicus×Bos taurus dairy heifers (n=90, 16-24 months of age) were synchronized for embryo transfer on Days 7-8. Immediately before ET, heifers were palpated for the presence of ovarian CL and CL papillae. Presence of CL, CL papillae, and CL lacunae were confirmed via transrectal B-mode ultrasound (Ibex EVO I, E. I. Medical Imaging). Transrectal colour Doppler ultrasound (Ibex EVO I, E. I. Medical Imaging) was used to evaluate blood flow to the CL. Invitro-produced (IVP) blastocysts (qualities I and II) were transferred to the uterine horn ipsilateral to the CL. All palpation, imaging, and embryo transfer was performed by a single technician. Pregnancy was determined via transrectal ultrasound 24-32 days post-embryo transfer (31-39 days of embryo age). Blood flow to the CL was split into three categories: high, median, and low. Presence or absence of two additional CL structures, CL papillae and lacunae, were recorded. Fisher's exact test was used to evaluate data. Statistical differences were considered significant at P&lt;0.05. The overall pregnancy rate was determined to be 40%, 36 out of 90. Pregnancy rates were similar in high (33.9%, 20 of 59), median (59.09%, 13 of 22), and low (33.33%, 3 of 9) blood flow categories. Consistent with previous studies, absence of CL papillae and presence of CL lacunae at the time of ET did not affect pregnancy rate. Doppler blood flow, papillae, and lacunae were also evaluated together in each possible combination. Only one outlier was present; all other differences were not significant. The highest pregnancy rate (66.67%, 10 of 15) was observed in recipients with CLs with median Doppler blood flow, a palpable CL papillae, and no CL lacunae. A larger sample size is required to determine the accuracy of this measurement. In conclusion, recipients with high to low CL blood flow are suitable for IVP embryo transfer programs. Alone, colour Doppler imaging of the CL does not predict pregnancy rate.

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